JP3102863B2 - Optical recording / reproducing apparatus for 8 cm and 12 cm disk cartridges and information recording / reproducing method therefor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical recording / reproducing apparatus which can use two or more kinds of disk cartridges having different sizes, for example, an 8 cm disk cartridge and a 12 cm disk cartridge, which can be seated on one tray, and an information recording / reproducing method thereof. About.

[0002]

2. Description of the Related Art In general, two types of disc cartridges are known which contain discs having different sizes, for example, discs having a diameter of 12 cm and discs having a diameter of less than 12 cm, ie, 8 cm. The cartridge has a receiving hole through which a turntable and a chucking clamp of the recording / reproducing apparatus enter, and an opening hole serving as a transfer path of the optical pickup device communicates with the receiving hole. The cartridge is provided with a shutter for simultaneously opening and closing the receiving hole and the opening hole.

An optical recording / reproducing apparatus records and / or writes data on a disc.
A means for rotating at a reproducible speed, an optical pickup device for irradiating a laser beam to a disk while moving in a radial direction of a rotating disk, and a signal processing for processing information detected by the laser beam emitted from the optical pickup device Unit.

When a disk cartridge is drawn into such an optical recording / reproducing apparatus, the receiving hole and the opening hole of the cartridge are opened while the shutter of the cartridge moves in one direction. Thereafter, the turntable and the chucking clamper enter the receiving hole to seat and chuck the disk, and then the optical pickup device records information while linearly reciprocating in the radial direction of the disk following the opening hole, or Play the recorded information.

However, since the above-mentioned general optical recording / reproducing apparatus is configured to use only one fixed cartridge, it is not compatible with a disk having a diameter of 12 cm and a disk having a diameter of 8 cm. There's a problem. In addition, for the above-mentioned reason, an optical recording / reproducing device dedicated to 12 cm and an optical recording / reproducing device dedicated to 8 cm should be provided, respectively, so that a problem of cost increase accompanying this has been raised.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and an object of the present invention is to provide a disk having a diameter of 12 cm and a disk having a diameter smaller than that, that is, a disk having a diameter of 8 cm. It is an object of the present invention to provide an optical recording / reproducing apparatus which can use a disk cartridge in which a disk cartridge is stored in one tray.

Another object of the invention is to provide a 12 cm or 8 c
It is an object of the present invention to provide an optical recording / reproducing apparatus which can be used with an adapter accommodating an 8 cm disk and an individual optical disk which can be seated on a tray in addition to an m disk cartridge. Still another object of the present invention is to automatically detect whether any one of the disc cartridges, adapters, and individual discs of different sizes to be seated on the tray has been seated, and to detect the detected disc. An object of the present invention is to provide an optical recording / reproducing apparatus for recording and reproducing information while automatically performing operations corresponding to individual disks, adapters, and disk cartridges, and an information recording / reproducing method thereof.

[0008]

An optical recording / reproducing apparatus according to the present invention for achieving the above object is provided with a main body case and at least two kinds of cases which are mounted so as to be capable of being pulled in and out of the case. Tray for selectively seating the cartridge of the type, means for supporting the disk cartridge seated on the tray so as not to flow correspondingly according to its size, and the size of the disk cartridge seated on the tray And means for detecting the state of the disk therein, means for rotating the disk in the disk cartridge seated on the tray, and recording and / or reproducing information on the disk rotated by the rotating means. Means for

The optical recording / reproducing apparatus according to the present invention further comprises means for opening and closing the shutter mounted on the cartridge in conjunction with the operation of pulling in and pulling out the tray from and to the case, and adding a hub area of the disk housed in the cartridge. The apparatus further includes a means for pressing to cause the rotating means to chuck.

Here, the cartridge supporting means includes: a pressure-bonding member that presses while making surface contact with one surface of a 12 cm cartridge or a small cartridge seated on the tray;
When the small cartridge is settled, the left and right holding members for holding the small cartridge in the left-right direction to prevent micro-flow and a horizontal holding member for keeping the small cartridge parallel to the bottom surface of the tray are included.

The detecting means includes first cartridge detecting means for detecting the size of the 12 cm cartridge and the state of the disk stored in the cartridge, and detecting the size of the small cartridge and the state of the disk stored in the cartridge. And a second cartridge detecting means for detecting

The first cartridge detecting means includes a plurality of first detecting holes formed in the tray at positions corresponding to the recognition holes of the cartridge, and a plurality of first detecting holes formed on the deck base so as to be inserted into the recognition holes of the cartridge through the first detecting holes. It is composed of at least one or more recognition switches attached to.

The second cartridge detecting means is attached to the deck base so as to be exposed in the guide hole of the tray, and is turned on / off by selectively contacting a contact portion of a pressure rod which moves following the guide hole. At least one leaf switch for detecting the size of the small cartridge seated on the tray while operating; a plurality of second detection holes formed in the tray at positions corresponding to the recognition holes of the small cartridge; An optical sensor attached to the deck base to detect a state of the disk by diverging a beam to the recognition hole of the cartridge through the detection hole and receiving the reflected beam.

The light sensor includes one light emitting element for irradiating a beam to the side of the diffusion lens fitted into the fitting hole of the opening cover through the second detection hole of the tray and the through hole of the small cartridge case, and the light sensor follows the diffusion lens. Several light receiving elements provided at positions corresponding to the recognition holes of the cartridge so as to receive the beam transmitted to each recognition hole, and the light emitting element and the light receiving element are attached and supported, and the light receiving beam by the light receiving element is provided. And a circuit board for detecting the electrical characteristics with electrical characteristics.

According to a preferred aspect of the present invention, an optical recording / reproducing apparatus is provided such that a main body case and two or more types of cartridges having different sizes are selectively seated so as to be able to be inserted and pulled out of the case. With a tray that can be
Means for supporting the disc cartridge seated on the tray so as not to flow correspondingly according to its size; first positioning means for determining and seating the position on the tray when using a 12 cm cartridge; First cartridge detecting means for detecting the size of the cartridge seated by the first positioning means and the state of the disk therein; and, when a small cartridge is used, determining its position on the tray for seating. (2) positioning means, second cartridge detecting means for detecting the size of the small cartridge seated by the second positioning means and the state of the disk therein, and rotating the disk in the disk cartridge seated on the tray Means for recording and recording information on a disc rotated by the rotating means. Or a means for playing.

Here, the first positioning means is a 12c
a pair of first positioning pin holes formed in the tray at positions corresponding to the insertion holes of the m cartridge, and provided on the deck base so as to be inserted through the first positioning pin holes into the insertion holes of the cartridge. And a pair of first positioning pins.

The second positioning means includes a pair of second positioning pin holes formed in the tray at positions corresponding to the insertion holes of the small cartridge, and a cartridge insertion hole passing through the second positioning pin hole. A rotating bracket provided with a pair of second positioning pins inserted into the main body case with hinge pins, and rotating bracket operating means for rotating the rotating bracket up and down. The rotating bracket operating means automatically operates in response to the detection signal of the second cartridge detecting means to operate the rotating bracket, and the slider is provided so as to linearly reciprocate following the guide projection protruding from the bottom surface of the main body case. A drive motor that is turned on / off in response to a detection signal of the second cartridge detection unit as a drive source of the slider; and a power transmission unit that relays the power of the drive motor to the slider.

According to a preferred aspect of the present invention, an information recording / reproducing method for an optical recording / reproducing apparatus includes the steps of detecting the seating of a cartridge placed in a tray, and setting the recording / reproducing means to an initial position when the cartridge is seated. , Detecting the size of the cartridge seated on the tray, detecting whether the recording surface of the disk housed in the cartridge is single-sided or double-sided, Detecting whether the disk has been formatted, displaying the detected cartridge size, the recording surface of the disk and the presence or absence of formatting so that the user can confirm it, and determining whether the recording surface of the disk has been verified. Detecting whether or not to record or reproduce information on the disk; and detecting information on the disk according to the detected result of the step. The and a step of recording and / or reproducing.

[0019]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 3 show an optical recording / reproducing apparatus according to an embodiment of the present invention. In the drawings, reference numeral 10 denotes a main body case, and reference numeral 20 denotes a tray. The tray 20 is attached to the main body case 10 so as to be able to be pulled in and out. The tray 20 has two different sizes, for example, a 12 cm cartridge 20.
0 and smaller (8 cm) cartridge 21 smaller than this
0 is selectively settled. The tray 20 has disc cartridges 20 of different sizes seated thereon.
Means are provided for supporting the 0,210 so that it does not flow correspondingly depending on its size.

The optical recording / reproducing apparatus according to the present invention comprises the disk cartridges 200, 2 seated on the tray 20.
10 and the disks d, d 'therein (FIG. 7,
(See FIGS. 8, 10, 12, and 13) Means for detecting a state, means for rotating a disk in a disk cartridge seated on the tray 20, and rotation by the rotation means It includes means for recording and / or reproducing information on a disc.

The optical recording / reproducing apparatus according to the present invention includes a shutter 20 mounted on each of the cartridges 200 and 210.
2, 220 (see FIG. 4, FIG. 6, FIG. 9)
Means for opening and closing in conjunction with the drawing and pulling-out operations of the tray 20 with respect to the discs, and means for pressing the hub areas of the discs d and d 'stored in the cartridges 200 and 210 to chuck the discs d and d' by the rotating means. Further included.

Hereinafter, the structure of the optical recording / reproducing apparatus according to the present invention will be described in detail with reference to FIGS. FIG. 4 is a perspective view showing a small cartridge seated on a tray of an optical recording / reproducing apparatus according to an embodiment of the present invention,
FIG. 5 is an enlarged sectional view of a main part of the small cartridge shown in FIG.

As shown, the small cartridge 210 has a cartridge case 212 having a receiving hole 212a and an opening hole 212b formed on the upper and lower surfaces,
2 is provided with an opening cover 214 that is hinged to the disc 2 and prevents the disc stored therein from being detached.

A single through hole 212c and a number of second recognition holes 212d are formed in the rear corner of the cartridge case 212. The opening cover 214 is formed with a fitting hole 214a corresponding to the through hole 212c and the second recognition hole 212d.

Here, the second recognition hole 212d is
For example, a hole for detecting the necessity of replacement of the disk initially stored in the cartridge case 212, a hole for detecting whether the recording surface of the disk is one side or both sides, and a hole for detecting whether the disk is formatted. Made in the hall to detect.

The fitting hole 2 of the opening cover 214
A diffusion lens 216 made of a transparent material is provided on 14a. The diffusion lens 216 is provided in each of the fitting holes 21.
4a, and a connecting portion 216b for connecting the fitting portions 216a to each other. And
Each second recognition hole 212d of the cartridge case 212
The light receiving plate 2 for opening and closing this
The light receiving plate 218 is manually operated.

On the other hand, according to FIGS.
The receiving holes 200a and 212a of the cartridge 200 or the small cartridge 210 and the opening hole 2
Center hole 20a and transfer hole 2 corresponding to 00b and 212b.
0b is formed. The center hole 20a and the transfer hole 20
b is for exposing the disk to the recording / reproducing means when the shutters 202, 220 of the cartridge are opened by the shutter opening / closing means. Here, the receiving hole 212a and the opening hole 2 of the small cartridge 210
12b is preferably formed to have the same diameter and width as the receiving hole 200a and the opening hole 200b formed in the 12 cm cartridge 200.

A guide portion 22 is provided at a predetermined height at the end of the transfer hole 20b of the tray 20, and a pair of guide holes 20c, 20c are provided on both sides of the guide portion 22.
k is formed. A number of first and second detection holes 20d and 20e are formed at one corner of the tray 20, and a pair of first and second positioning pin holes 20f and 20g are formed at both corners. Each is formed. A pair of square coupling holes 20i each having a guide rail 20h is formed between the first and second positioning pin holes 20f and 20g and the guide holes 20c and 20k, and a pair of through holes are provided adjacent to the coupling holes 20i. A hole 20j is formed.

The guide portion 22 has a cartridge 200 or a small cartridge 210 seated on the tray 20.
There is provided a pressure bonding member 24 that presses the surface while making surface contact with one surface. The tray 2 is provided in the coupling hole 20i.
When the small cartridge 210 is seated on the left and right sides, the left and right holding members 36 hold the small cartridge 210 in the left and right direction to prevent it from moving.
Is provided. The tray 2 is provided in the through hole 20j.
When the small cartridge 210 is seated at
Level maintaining members 42 for keeping the small cartridge 210 horizontal with respect to the bottom surface of the cartridge 0 are mounted.

The crimping member 24 includes a crimping slider 26
And a 12 cm cartridge 200 formed on both sides
And a guide hole 20c, 20k of the tray 20 provided on the bottom surface of the crimping portion 26a.
And a small cartridge 210 provided on both sides of the crimp slider 26 so as to be linearly movable.
Is provided with a pair of crimping rods 30 for crimping the one surface when seating.

The crimping bar 30 has a contact portion 30b, and a concave groove 30a is formed on the outer peripheral surface of the crimping bar 30, and an E-ring 32 is fitted into the concave groove 30a. Therefore, the crimping bar 30 does not completely come off the crimping slider 26. Then, a first coil spring 34 for returning the crimping rod 30 to the initial position is interposed. Here, the contact portion 30b of the crimping rod 30 is formed with guide holes 20c and 20k formed on the bottom surface of the tray 20.
To follow. Accordingly, when the 12 cm cartridge or the small cartridge is settled, the cartridge can be appropriately supported.

The left and right holding members 36 are connected to the tray 2.
It is composed of a pair of holder brackets 40 movably provided in fitting holes 20i formed on both sides of the central portion of O. The holder bracket 40 has a guide piece 38 having aligned guide grooves fitted into the guide rails 20h of the coupling holes 20i. The guide piece 38 is attached to the tray 20.
When the 12 cm cartridge 200 is settled down, its tip is inclined to avoid interference with the lower surface of the cartridge 200.

The horizontal holding member 42 is provided on the tray 20.
Of a pair of brackets 4 fixed to the lower surface of the
6, a bracket shaft 48 provided on the upper portion of the bracket 46 so as to be vertically movable, and a second coil spring 5 for elastically supporting the bracket shaft 48 upward.
0. Here, the tip of the bracket shaft 48 projects into the through hole 20j of the tray 20, and this projection is inserted into a seating hole 212e (see FIG. 10) formed on the lower surface of the small cartridge 210. Thereby, when the small cartridge is settled, the horizontal state can be maintained.

On the other hand, the detecting means includes first cartridge detecting means for detecting the size of the 12 cm cartridge 200 and the state of the disk d stored in the cartridge, the size of the small cartridge 210 and the disk stored in the cartridge. There is a second cartridge detecting means for detecting the state of d '.

The first cartridge detecting means is 12 cm
A number of first detection holes 20 formed in the tray 20 at positions corresponding to the first recognition holes 200c of the cartridge 200
d through the first recognition hole 200 of the cartridge 200
c includes a number of recognition switches 52 that are inserted. Here, the first recognition hole 200c is formed of, for example, one recognition hole for discriminating a cartridge and several recognition holes for detecting a disk state. The cartridge identification hole is closed, and the disk state detection hole is open or closed depending on the state of the disk.

The recognition switch 52 is connected to the deck base 60.
A first recognition switch 52a for discriminating the cartridge and a second recognition switch 52 for disc state detection.
b. These recognition switches 52 are kept in the "OFF" state initially, that is, when the cartridge is not mounted on the tray 20. At this time, when the cartridge 200 is seated on the tray 20 and pulled into the main body case 10, the deck base 60 is raised, and the recognition switch 52 is moved through the first detection holes 20 d formed in the tray 20. 200 are inserted into the corresponding first recognition holes 200c. In this process, the first recognition switch 52a is turned on while being pressed by the cartridge because the recognition hole for cartridge determination of the cartridge is closed, thereby detecting that the cartridge is a 12 cm cartridge.

The second cartridge detecting means is the tray 2
And at least one leaf switch 64 attached to the deck base 60 so as to be exposed at the guide holes 20c and 20k of the "0" and detecting the size of the cartridge, and detecting the state of the disk d 'stored in the small cartridge 210. And an optical sensor 54. Here, the leaf switch 64 is seated on the tray 20 while performing an "on / off" operation by selectively contacting the contact portion 30b of the crimping bar 30 that moves following the guide holes 20c and 20k. The size of the small cartridge 210 is detected.
That is, it is detected that the cartridge is a small cartridge under the condition that the leaf switch 64 is turned on.

The light sensor 54 emits a beam to the diffusion lens 216 side fitted in the fitting hole 214a of the opening cover 214 through the second detection hole 20e of the tray 20 and the through hole 212c of the small cartridge case. The light emitting element 56a and the diffusion lens 21
6, several light receiving elements 56b provided at positions corresponding to the second recognition holes 212d of the small cartridge 200 so as to receive the beam transmitted to each of the second recognition holes 212d; A circuit board 58 is provided which adheres and supports the element 56b and detects a light beam received by the light receiving element 56b with electrical characteristics.

A holder 114 having a predetermined height is integrally attached to the circuit board 58 so as to surround the light receiving element 56b. The holder 114 prevents the beam transmitted to the light receiving element 56b following the diffusion lens 216 from spreading to the adjacent light receiving element 56b, thereby preventing malfunction of the light receiving element 56b.

As described above, the optical recording / reproducing apparatus according to the present invention can detect that the cartridge is a 12 cm cartridge when the first recognition switch 52a is turned on, and the leaf switch 64 is turned on. 8c
m cartridge can be detected. Then, several second recognition switches 52b and the optical sensor 54
It is possible to detect the state of the disks stored in the cm and 8 cm disk cartridges.

In the present invention, not only the 12 cm and 8 cm cartridges described above but also individual disks can be seated on the tray and used. At this time, the condition for detecting each disk is when the first recognition switch 52a and the leaf switch 64 are all in the "OFF" state. More specifically, each disk does not have a cartridge case in terms of structure. Therefore, when the disc seating position in the main body case is viewed, the disc is seated at a position deviating from the first recognition switch 52a and the leaf switch 64.
2a and the leaf switch 64 are all maintained in the "off" state.

Further, according to the present invention, an adapter for accommodating an 8 cm disk to be used for an optical recording / reproducing apparatus for 12 cm can be mounted on a tray and used. In this case, an adapt can be automatically detected. For this reason, a third recognition switch for adapter determination (not specifically shown in the drawings) is further provided. The third recognition switch is located so as to correspond to an A3 recognition hole formed in the adapter, and the A3 recognition hole is open. Therefore, the third recognition switch is inserted into the A3 recognition hole of the adapter when the adapter is used. In this case, it is set as "off", and in the present invention, when the third recognition switch is turned "off", the one settled in and pulled into the tray is detected as an adapter.

Thus, the present invention uses a number of recognition switches to set these "on / off" conditions.
cm cartridge or 8cm cartridge?
Alternatively, it can be automatically detected whether the disc is an individual disc or an adapter.

On the other hand, the tray 2
A pair of first positioning pins 62 which project through the first positioning pin hole 20f of the No. 0 and determine the seating position of the 12 cm cartridge 200 are projected. This first positioning pin 62
Is used when a 12 cm cartridge 200 is used.
And see FIG. 8) to determine the seating position of the 12 cm cartridge.

The main body case 10 has a tray 20.
When the small cartridge 210 is settled, a rotating bracket 68 having a pair of second positioning pins 66 for determining the position is provided by hinge pins 70. The second
The positioning pin 66 is inserted into an insertion hole 212f formed in the small cartridge 210 (see FIGS. 10 and 12).
To determine the seating position of the small cartridge. The rotating bracket 68 is vertically rotated by a rotating bracket operating means operated by the optical sensor 54 for detecting the disk d 'of the small cartridge 210.

The rotating bracket operating means comprises a slider 80, a drive motor 82, and power transmission means for transmitting the power of the drive motor 82 to the slider 80. A pair of inclined slots 80a into which fitting projections 68a projecting from both sides of the rotating bracket 68 are fitted are formed at the tip of the slider 80, and guide projections 12 projecting from the main body case 10 are inserted into the bottom surface. A pair of guide holes 80b are formed, and a coupling hole 80d having a rack gear 80c formed on the inner peripheral surface is formed at the rear portion.

The power transmission means includes the rack gear 80
The gear 84 includes a gear 84 inserted into the coupling hole 80d so as to mesh with the worm gear c, a worm gear 86 formed integrally with the gear 84, and a worm 88 pressed into a shaft of a drive motor 82 so as to mesh with the worm gear 86. You.

On the other hand, according to FIG. 1, the rotating means according to the present invention comprises a spindle motor 9 fixed to a deck base 60.
And a turntable 92 on which disks d and d 'housed in cartridges 200 and 210 of different sizes which are press-fitted into the rotating shaft are seated.

The recording / reproducing means is a deck base 60.
And a pickup base 96 which reciprocates linearly following a pair of guide bars 94 provided in parallel with the guide bar 94 and irradiates a laser beam to a recording surface of a disk provided above the pickup base 96 to write information on the recording surface. It comprises an optical head 98 for recording / reproducing.

The shutter opening / closing means is shown in FIGS.
As shown in FIG. 2, a link 102 pivotally provided on the lower surface of the upper cover 100, and a shutter 20 protruding from an end of the link 102 and attached to the cartridge.
An opening protrusion 104 for opening the second and 220, and the link 10
2 is provided with a torsion spring (not shown) for returning the link 102 to the initial position by being interposed at the other end.

The chucking means is shown in FIGS.
As shown in FIG. 7, a lever 110 caulked on the upper surface of the upper cover 100, and a clamper 11 mounted on one end of the lever to bring the disc into close contact with the turntable 92.
It consists of two.

Hereinafter, the operation of the optical recording / reproducing apparatus according to the present invention configured as described above will be described in detail with reference to the structural diagrams shown in FIGS. 6 to 13 and the flowcharts shown in FIGS. 14 and 15. I do.

When a take-out button (not shown) provided on the front of the main body case 10 is pressed, the tray 20 is moved outside the case 10 while a loading motor (not shown) provided inside the case 10 is operated. Come out. In this state, one of the 12 cm and small cartridges 200 and 210 or one of the disks is settled on the tray 20.

When the 12 cm cartridge 200 is
6 to FIG. As shown, the lower surface of the cartridge 200 is the tray 20.
It is seated tightly on the bottom of the car. Further, the cartridge 200 is supported so as not to flow by a crimping portion 26a of a crimping slider 26 provided behind the cartridge 200.

Here, the contact portion 30b of the pressure rod 30 is 12
When the cm cartridge 200 is inserted into the tray 20, the state where the cm cartridge 200 is moved rearward following the guide holes 20c and 20k is maintained. And the through hole 2 of the tray 20
The bracket shaft 48 partly protruded from 0j is 1
It is in a state of being moved downward by contacting the lower surface of the 2 cm cartridge 200.

After that, if the ejection button is pressed again,
The loading motor is operated in reverse, and the tray 20 on which the cartridge is seated is pulled into the main body case 10 (S101). At this time, the shutter 202 mounted on the cartridge 200 is moved in any one direction while being in contact with the opening protrusion 104 of the link 102 provided on the upper cover 100.
0 receiving hole 200a and opening hole 200b are opened.

When the tray 20 is completely drawn into the main body case 10, the deck base 60 rises as shown in FIGS. 7 and 8, and accordingly, the turntable 92 is inserted into the receiving hole 200a of the cartridge 200. The disk d is settled down and enters. The pair of first positioning pins 62 are formed in the first positioning pin holes 20 of the tray 20.
f and the insertion hole 200d of the cartridge 200
Is inserted into. Thereby, the seating position of the 12 cm cartridge is determined, and the parallelism of the cartridge 200 with the bottom surface of the tray 20 is maintained.

Further, the tip of the lever 110 caulked by the upper cover 100 moves downward in conjunction with the pull-in of the tray 20, whereby the clamper 112 enters the upper receiving hole 200a of the cartridge while the hub area of the disc is being moved. Is pressed and chucked on the turntable.

In such a state, it is confirmed whether the third recognition switch is "ON" (S102). If the third recognition switch is "ON", the cartridge or each disk is settled. Is detected (S103).
If "OFF", it is detected that the adapter has been seated (S104).

After the step S103, it is detected whether the cartridge is a cartridge or an individual disk (S105). This is an individual disk if both the first recognition switch and the leaf switch are in the "OFF" condition. Is detected (S106),
If not, it is detected that the cartridge is present (S
107).

If the first recognition switch is "ON" (S108), it is detected that the cartridge is a 12 cm cartridge (S109). If the leaf switch is "ON" (S110), it is detected that the cartridge is an 8 cm cartridge (S110).
111).

When the cartridge and disk discrimination step is completed, the pickup base 96 provided with the optical head 98 is moved to the initial position (S).
112). In this state, another recognition switch is selectively inserted into the first recognition hole of the cartridge 200, thereby detecting the state of the disk d. For example, it is determined whether the recording surface confirmation recognition switch is on or off (S113).
A and B sides of the disk are detected (S114, S115),
With the same operation, it is confirmed whether the recognition switch for format confirmation is on or off (S116), and it is detected whether or not the disk is formatted (S117, S118).

After detecting the size of the cartridge, the recording surface of the disk, and whether or not the disk has been formatted as described above, it is displayed so that the user can confirm it (S119). It is detected whether the surface is verified or not (S120, S1)
21). Then, after detecting whether information is recorded or reproduced (S122, S123, S124), the selected condition is detected, and the information is recorded and / or reproduced on the disk (S125).

Here, if an adapter is detected, S
After step 104, the process proceeds from step S112. Then, when a disk is detected (S106), the pickup is moved to the initial position (S106a), and after detecting whether the recording surface is single-sided or double-sided (S106b), a reproducing operation is performed (S106c). At this time, the detection of the A and B surfaces of the disk detects that the pickup reads the read area of the disk. That is, although the A and B surfaces of the disk are recorded in the read area of the disk, the pickup reads the A and B surfaces of the disk and checks them.

FIGS. 9 to 13 show a case where a small cartridge is seated on the tray 20 to record and / or reproduce information on a disk. According to this, the small cartridge 210 is seated on the tray 20 while pressing the crimping bar 30 mounted on the crimping slider 26. At this time, the bracket shaft 48, a part of which protrudes from the through hole 20 j of the tray 20, is inserted into the insertion hole of the small cartridge 210, and the crimping rod 30 moved backward moves forward by the restoring force of the first spring 34. One surface of the cartridge case 212 is pressed to prevent flow.

Thereafter, when the holder bracket 40 provided in the fitting hole 20i of the tray 20 is pressed in the left-right direction, the holder bracket 40 is moved inward of the tray 20 along the guide rail 20h in which the guide piece 38 is fitted. The two sides of the cartridge case 212 are brought into close contact with each other while moving. This can prevent the cartridge from flowing in the left-right direction.

In this state, if the tray 20 is pulled into the main body case 10, the small cartridge 21
0, the shutter 220 is connected to the link 102 as described above.
The tentable 92 is moved upward by the rise of the deck base 60 to enter the receiving hole 212a of the cartridge and seat the disk d '. At this time, the deck base 6
10, the leaf switch 64 attached to the tray 20 is brought into contact with the contact portion 30b of the crimping rod 30, as shown in FIG.
10 is detected.

When the size of the cartridge is detected by the leaf switch 64, the drive motor 82 is operated in accordance with the detected signal, and at the same time, the worm 88 connected to the rotating shaft meshes with the worm 88. The worm gear 86 rotates, and the gear 84 meshing with the rack gear 80c of the slider 80 rotates, so that the slider 80 moves rearward as shown in FIG. At this time, the rotating bracket 68 connected to the inner surface of the case 10 by the hinge pin 70 is raised by the linear movement of the slider 80, and the fitting projections 68a protruding on both side surfaces of the rotating bracket 68 follow the inclined slot 80a. I do. Further, the second positioning pin 66 fixed to the upper surface of the rotating bracket 68 passes through the second positioning pin hole 20g of the tray 20 and the small cartridge 210
Is inserted into the insertion hole 212f.
The seating position of the small cartridge 210 with respect to 0 is determined.

Thereafter, the circuit board 58 of the deck base 60
A beam is emitted from the light emitting element 56a attached to the substrate.
This beam passes through the second detection hole 20 e of the tray 20 and the through hole 212 c of the cartridge, and is fitted into the fitting hole 214 a of the opening cover 214 while being diffused.
Following step 16, the light is received by the light receiving element 56b again through the second recognition hole 212d and the second detection hole 20e, whereby the state of the disk can be detected.

That is, as shown in FIG. 12, the beam emitted from the light emitting element 56a attached to the circuit board 58 is applied to the second detection hole 20e and the through hole 212 of the cartridge case 212.
c, the light is applied to the fitting portion 216a of the diffusion lens 216, and the beam is irradiated to the fitting portion 216a and branched into a large number, and is transmitted to the connecting portion 216b connecting the fitting portions 216a and another fitting portion 216a. . The transmitted beam passes again through the second recognition hole 212d and the second detection hole 20e,
The light is incident on the light receiving element 56b attached to the corresponding position. Thus, whether the recording surface stored in the cartridge is one side or both sides is detected, and whether the disk is a formatted disk or an unformatted disk is automatically detected.

For example, if the light receiving plate 218 movably mounted on the cartridge case 212 is manually operated to block the second recognition hole 212d, the beam applied to the diffusion lens 216 is applied to the corresponding light receiving element 56b. Is detected, the disk d 'is not removed from the cartridge 210 at all. Further, if the other recognition hole is blocked by the light receiving plate 218, the recording surface of the disc is detected as being on both sides, and if the beam is received by the light receiving element, it is detected as being on one side . By opening and closing the other recognition holes as described above, it is possible to detect whether or not the disk has been formatted.

Here, the beam does not spread to the other light receiving elements 56b attached adjacent to each other by the holder 114 surrounding the light receiving element 56b. Therefore, the accuracy of the disk state detection can be improved.

If the discs are set on the tray 20 one by one, the recording / reproducing apparatus detects a state in which the discs are set one by one, and thereafter, the pickup base 96 provided with the optical head 98 is provided. To the initial position. Then, it detects whether the recording surface of the disc is one side or both sides, and records and / or reproduces information on the detected recording surface.

On the other hand, when the adapter accommodating the 8 cm disc is settled on the tray, the A3 recognition hole of the adapter is turned off.
When the recognition switch is inserted, it is detected that the adapter accommodates the 8 cm disk.

When the recognition switch detects the adapter, the pickup base provided with the optical head moves to the initial position. Then, it detects whether the recording surface of the disc is one side or both sides, and records and / or reproduces information on the detected recording surface.

[0076]

As described above, in the optical recording / reproducing apparatus according to the present invention, not only disk cartridges having different sizes and individual disks but also an adapter accommodating an 8 cm disk can be stored in one tray. Since it can be used by wearing it, compatibility can be improved and the cost can be reduced accordingly. Further, the optical recording / reproducing apparatus according to the present invention automatically detects the disk state in the disk cartridge and the adapter seated on the tray,
Since the operation is automatically performed according to the detected disk, the time for recording / reproducing information can be shortened, and the information can be used more conveniently.

Although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the above-described embodiment, and does not depart from the gist of the present invention described in the claims. Various modifications can be made by anyone with ordinary knowledge in the field to which they belong.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an optical recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is an assembled perspective view of the optical recording / reproducing apparatus shown in FIG.

FIG. 3 is an enlarged exploded perspective view of a main part of the optical recording / reproducing apparatus according to one embodiment of the present invention.

FIG. 4 is a perspective view showing a small cartridge seated on a tray of the optical recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 5 is an enlarged sectional view of a main part of the small cartridge shown in FIG.

FIG. 6 is a plan view showing a state in which a 12 cm cartridge is seated on a tray of the optical recording / reproducing apparatus according to one embodiment of the present invention.

7 is a side sectional view of the optical recording / reproducing apparatus shown in FIG.

FIG. 8 is a detailed view of a portion A in FIG. 7;

FIG. 9 is a plan view showing a state in which a small cartridge is seated on a tray of the optical recording / reproducing apparatus according to an embodiment of the present invention.

10 is a side sectional view of the optical recording / reproducing apparatus shown in FIG.

FIG. 11 is a detailed view of a portion B in FIG. 10;

FIG. 12 is a detailed view of a portion C in FIG. 10;

FIG. 13 is an enlarged sectional view showing an operation state of a slider applied to the recording / reproducing apparatus according to the present invention.

FIG. 14 is a flowchart illustrating an information recording / reproducing method of the optical recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 15 is a flowchart illustrating an information recording / reproducing method of the optical recording / reproducing apparatus according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 main body case 20 tray 20c, 20k guide hole 20i through hole 24 crimping member 36 left and right holding member 52a first recognition switch 52b second recognition switch 54 optical sensor 60 deck base 64 leaf switch 94 guide bar 110 lever 114 holder 200, 210 disk Cartridge 200a, 212a Receiving hole 200b, 212b Opening hole 202, 220 Shutter 216 Diffusion lens

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Song Ming-Zhong, 806-606 Doosan Apty, Gyeonggi-do, Suwon City, Gyeonggi-do, Korea (56) References JP-A-2-134767 (JP, A) JP-A-5-234225 (JP, A) JP-A-5-144165 (JP, A) JP-A-8-106709 (JP, A) JP-A-9-91821 (JP, A) JP-A-61 −233465 (JP, A) (58) Fields surveyed (Int. Cl. ⁷ , DB name) G11B 17/04 G11B 19/12

Claims (22)

(57) [Claims] 1. A main body case, a tray mounted on the case so as to be capable of being pulled in and out, and capable of selectively seating two or more types of cartridges having different sizes, and a disc seated on the tray. Cartridge support means for supporting the cartridge so as not to flow correspondingly according to its size; means for detecting the size of the disk cartridge seated on the tray and the state of the disk therein; Means for rotating the disk in the loaded disk cartridge; and means for recording and / or reproducing information on the disk rotated by the rotating means. The cartridge supporting means includes a tray. While contacting one side of the seated 12cm cartridge or small cartridge A pressurizing member for pressing, a left and right holding member for holding the small cartridge in the left-right direction to prevent micro-flow when seated, and a horizontal maintaining member for keeping the small cartridge parallel to the bottom of the tray. An optical recording / reproducing apparatus characterized by the above-mentioned. 2. The cartridge is provided with a shutter for opening and closing a receiving hole and an opening hole of the cartridge.
2. The optical recording / reproducing apparatus according to claim 1, further comprising means for opening and closing the shutter in conjunction with a tray pull-in / pull-out operation with respect to the case. 3. The tray 12c is seated on the tray.
2. The apparatus according to claim 1, wherein a center hole and a transfer hole having the same inner diameter and width as the receiving hole and the opening hole of the m cartridge or the small cartridge are provided at corresponding positions to expose the disk to the recording / reproducing means. An optical recording / reproducing apparatus according to claim 1. 4. The crimping member includes a pair of hooks fitted into a guide hole of the tray, the crimping slider provided on the tray, and 12 cm integrally formed on both sides of the crimping slider.
A pair of crimping portions for crimping the back surface of the cartridge, a pair of crimping bars provided linearly movable inside the crimping portion of the crimping slider, and crimping one surface when the small cartridge is seated; The optical recording / reproducing apparatus according to claim 1, further comprising a pair of coil springs elastically supported at an initial position. 5. The left and right holding members are movably provided in fitting holes formed on both sides at the center of the tray, and are constituted by a pair of holder brackets which are brought into close contact with both sides when the small cartridge is settled. 2. The optical recording apparatus according to claim 1, wherein the holder bracket has a guide piece, and a tip of the guide piece is inclined to avoid interference with a bottom surface of the 12 cm cartridge when the cartridge is settled. Playback device. 6. A small cartridge, wherein the horizontal maintaining member is provided on a bracket fixed to the bottom of the tray, and the bracket is movably provided in the up and down direction such that a tip thereof protrudes through a through hole formed in the tray. 2. The light according to claim 1, further comprising: a bracket shaft inserted into a seating hole formed on a lower surface of the small cartridge when seated, and a coil spring elastically supporting the bracket shaft upward. Recording and playback device. 7. A first cartridge detecting means for detecting a size of a 12 cm cartridge and a state of a disk stored in the cartridge, a size of the small cartridge and a state of the disk stored in the cartridge. 2. The optical recording / reproducing apparatus according to claim 1, further comprising: a second cartridge detecting means for detecting the condition. 8. The first cartridge detection means includes a plurality of first detection holes formed in a tray at positions corresponding to the recognition holes of the cartridge, and is inserted into the recognition holes of the cartridge through the first detection holes. The optical recording / reproducing apparatus according to claim 7 , comprising at least one or more recognition switches attached on the deck base. 9. The second cartridge detecting means is attached to a deck base so as to be exposed in a guide hole of a tray, and selectively contacts a contact portion of a pressure rod which moves following the guide hole. At least one leaf switch for detecting the size of the small cartridge seated on the tray while performing on / off operation; and a plurality of second detection holes formed in the tray at positions corresponding to the recognition holes of the small cartridge. And an optical sensor attached on a deck base to detect a state of the disc by diverging a beam to a recognition hole of the cartridge through the second detection hole and receiving a reflected beam. The optical recording / reproducing apparatus according to claim 7 , wherein 10. The light sensor, wherein: one light emitting element for irradiating a beam to a diffusion lens side fitted in a fitting hole of an opening cover through a second detection hole of a tray and a through hole of a small cartridge case; A plurality of light receiving elements provided at positions corresponding to the recognition holes of the cartridge so as to receive a beam transmitted to each recognition hole following the lens; and adhering and supporting the light emitting element and the light receiving element; 10. The optical recording / reproducing apparatus according to claim 9 , further comprising: a circuit board that detects a light receiving beam based on electrical characteristics. 11. The disk drive according to claim 10 , wherein each of the recognition holes of the cartridge is provided with a light receiving plate for selectively opening and closing the holes, so that detection of the state of the disk can be controlled artificially. Optical recording and reproducing device. 12. The optical recording / reproducing apparatus according to claim 10 , wherein each of the plurality of light receiving elements is wrapped by a holder having a predetermined height so that a beam does not spread to an adjacent light receiving element. . 13. The apparatus according to claim 1, wherein said rotating means comprises a turntable on which a disk housed in a cartridge is seated, and a spindle motor for rotating said turntable. An optical recording / reproducing apparatus according to claim 1. 14. The recording / reproducing means includes an optical head, a pickup base on which the optical head is provided, and a pair of guide bars for guiding the pickup base so as to be able to reciprocate linearly in a radial direction of the disk. The optical recording / reproducing apparatus according to claim 1, wherein: 15. The shutter opening / closing means includes a link rotatably provided on a lower surface of an upper cover coupled to an upper portion of a main body case, and a shutter protruding from an end of the link and contacting one side of a shutter of a cartridge. And a spring interposed at the other end of the link to return the link to an initial position, wherein the link pivots in conjunction with this operation when the tray is pulled into the main body case. 3. The optical recording / reproducing apparatus according to claim 2, wherein: 16. A main body case, a tray attached to the case so as to be capable of being pulled in and out, and capable of selectively mounting two or more types of cartridges having different sizes, and a tray mounted on the tray. Cartridge support means for supporting a disc cartridge which does not flow correspondingly according to its size; first positioning means for determining the position of the 12 cm cartridge on a tray and seating it thereon; First cartridge detecting means for detecting the size of the 12 cm cartridge seated by the means and the state of the disk therein, and second positioning means for determining the position on the tray and seating when using the small cartridge. And the size of the small cartridge seated by the second positioning means and the data inside the small cartridge. Second to detect disk status
Cartridge detecting means, means for rotating a disk in a disk cartridge seated on the tray, and means for recording and / or reproducing information on a disk rotated by the rotating means, The cartridge supporting means includes: a pressure-contact member that presses the surface of a 12 cm cartridge or a small cartridge seated on a tray while making surface contact with the surface of the small cartridge; An optical recording / reproducing apparatus comprising: a holding member; and a horizontal maintaining member for maintaining the parallelism of the small cartridge with the bottom surface of the tray. 17. The cartridge according to claim 17, wherein the first positioning means includes a pair of first positioning pin holes formed in the tray at positions corresponding to the insertion holes of the 12 cm cartridge, and a cartridge insertion hole passing through the first positioning pin holes. And a pair of first positioning pins provided on the deck base so as to be inserted into the deck base.
17. The optical recording / reproducing device according to item 16 . 18. The method according to claim 18, wherein the second positioning means includes a pair of second positioning pin holes formed in the tray at positions corresponding to the insertion holes of the small cartridge, and inserting the small cartridge through the second positioning pin holes. A rotating bracket provided with a pair of second positioning pins inserted into the holes and provided on the main body case with hinge pins; and rotating bracket operating means for rotating the rotating bracket up and down, wherein the rotating bracket operation is performed. 17. The optical recording / reproducing apparatus according to claim 16 , wherein the means operates the rotating bracket while automatically operating in response to a detection signal of the second cartridge detecting means. 19. A slider provided so as to linearly reciprocate following a guide projection projecting from a bottom surface of a main body case, and a detection signal of a second cartridge detection means as a driving source of the slider. 19. The optical recording / reproducing apparatus according to claim 18 , further comprising: a drive motor that performs an "on / off" operation in response to the power, and power transmission means that relays the power of the drive motor to a slider. 20. The slider has a pair of inclined slots fitted into fitting projections provided on both sides of the rotating bracket, and a pair of guide holes into which guide projections formed on the bottom surface of the main body case are inserted. 20. The optical recording / reproducing apparatus according to claim 19 , wherein a coupling hole formed with a rack gear on an inner peripheral surface is provided at a rear portion of the slider. 21. A gear that is inserted into a coupling hole of a slider and meshes with a rack gear thereof, a worm gear integrally coupled with the gear, and a worm pressed into a shaft of a drive motor so as to mesh with the worm gear. 21. The optical recording / reproducing apparatus according to claim 20 , wherein: 22. (a) detecting the seating of the cartridge put in the tray; (b) moving the recording / reproducing means to an initial position when the cartridge is seated in the step; (c) Detecting the size of the cartridge seated on the tray; (d) detecting whether the recording surface of the disk housed in the cartridge is single-sided or double-sided; and (e) detecting the size of the disk. Detecting whether or not the cartridge has been formatted; (f) the size of the cartridge detected in the step;
A step of the user recording surface and format the presence or absence of the disc is displayed so as to be confirmed, the steps of detecting whether to record or reproduce information in (h) disk, (i) pre-Symbol step (h) by detecting Recording and / or reproducing information on / from the disk according to the result of the information recording / reproducing.